USCG Exam PracticeRadar fundamentals and ARPA basics
The ARPA performance standards in 33 CFR §164.38 require that ARPA facilities be available on at least which two range scales?
- A. 3 or 4 miles, and 6 or 8 miles
- B. 1 or 2 miles, and 6 or 8 miles
- ✓ 3 or 4 miles, and 12 or 16 milesCorrect
- D. 6 or 8 miles, and 12 or 16 miles
Why C is correct
Per 33 CFR §164.38, Appendix A, paragraph 3.4.4, ARPA facilities must be available on at least the 12- or 16-mile range scale and the 3- or 4-mile range scale. These two scales address both long-range situation awareness and close-quarters collision avoidance.
Cited:33 CFR §164.38